The Kraskino city-site is located in Kraskino Township in Russia’s southern Primorsky Territory, near the mouth of the Chukanov River, known as ancient Longyuanfu, the east capital of Bohai Kingdom. Since 1980, Institute of Far East History, Archaeology and Nationality Studies, the Far East Branch of Russia Science Academy has conducted years of survey and excavations. In recent years scholars from Japan and Korea have also attended excavations to the city walls and the inside remains. According to the agreement with its Russia partner, Institute of Far East History, Archaeology and Nationality Studies, the Far East Branch of Russia Science Academy, Jilin Provincial Institute of Archaeology and Cultural Relic has conducted 20-day’s survey to the city-site since September 2011. Before, the Russia side had explored it wholly with electromagnetic sensing techniques, which provided reference for this excavation. The north (Area I) and southeast (Area II) parts of the site were selected to be further explored, with an drilling area totaled 4000 square meter.
Source: China Archeology/ Institute of Archeology/ Chinese Academy of Social Sciences